Agricultural implement



Jan. 30, 1945.-

J. R. ORELIND E'TAL 2368156 AGRICULTURAL IMPLEMENT Filed March 22; 1943s sham-sheet 1 Jan. 30, 1945. J. R. oELlND ETAL 'AGRICULTURAL IMPLEMENTFiled March 22, 194s :s sheets-sheet 2 Jan. 30, 1945.

J. R. ORELIND EI'AL AGRICULTURAL IMPLEMENT Filed March 22, 1943 M 73 39u lo o 7l l I@ l O 72 O 3 Sheets-Sheet 3 PatentedJan. 30, 1945 UNITED lSTATES PATENT OFFICE 2,368,156 AGRIGULTRAL IMPLEMENT John R. Orelind,Canton, Ill..

Wilmette, and Arthur G. Evans, assignors to International HarvesterCompany, a corporation ot New Jersey Applicationl March 22, 1943, SerialNo. 480,012 11 Claims. (Cl. 9750) This invention relates totractor-mounted agricultural implements and, more particularly, to powerlifting mechanism therefor.

'I'he invention is particularly applicablel to the type of power-lift incopending United States application of C. W. Mott, Serial No. 466,463,led November 2l, 1942, to which reference may be had `for a fulldisclosure thereof; however, the invention may be readily adapted toother types of power lifts.

are working ment on the tools mounted the side of a eld, it is desirablethat both front and rear working tools on one side of the tractor beraised or lowered independently of the worktools out of contact with theground. This type of independent operation of the working tools oncontrol mechanism described l0 In tractor-mountedl implements wherethere n object of the invention is to provide an lrnfoved apparatus fortransmitting power to elector-mounted implements from a source f-lntedon the tractor and deriving power therefrom.

Another object to the source of power,

ing tools on the other side.

These and other objects and advantages will become clear from thefollowing detailed de- 55 tion of the tracto scription whenread inconjunction with the accompanying drawings, wherein:

Figure 1 is a view of a detail, partly in showing the interconnectingmeans bedependently of the tools on the other side;

Figure 5 is .an elevation of a portion of the mechanism shown in Figure3; and

Figure 6 is a detail showing thel manual levers t for controlling themovement of the working tools.

Referring particularly to Figures 1 and 2, it will be noted that the tothe tractor is made by means ofupper and 2l and 28 pivotally mounted 29attached to the forward porof bolts 30. Also upon a bracket r by meanspivoted on the bracket is e. lever 3| connected `lli is raised- Uponretraction of piston 55. the

to the working tool by a lift rod 32. As viewed tool is lowered.

in Figure 2, it may be noted that both sides of As stated before, fluidis supplied to the cylinthe tractor are similarly equipped. der devices34 and 35 for actuating shaft 49 and The body portion I of the tractoris provided- 5 sleeve 50 by a mechanism which forms no part with anintermediate housing 33, in which is enof the present invention. r Thismechanism proclosed the fluid power arrangement by which the vides ahigh degree of control of the rate at which working tools are moved toand from groundfluid is'supplied to the cylinders 34 and 35, and workingposition. For the purposes of the presmanual operation of this mechanismis effected ent invention only fluid-actuated cylinder deby the levers36 and 31, accessible to and under vices 34 and 35 indicated in Figures2 and 3 are the control of an operator from his station 6|. shown.Actuation of the cylinder devices, and Lever 31, through link 44, isconnected to lever 45. therefore movement of the working tools, is underLever 45 is affixed to the end of a shaft 62 extendthe control of thetractor operator, and is iniing through and rotatably mounted in housingtiated by manipulation of manual levers 36 and l5 33. Depending fromshaft 62 is an arm 63 opera- 31 for cylinders 35 and 34, respectively.The letively connected by a link 64 to a control mechvers 36 and 31 aremounted on the steering post anism generally indicated at 65 forcylinder de- 36 of the tractor for movement over dual quadvice 34. Thiscontrol mechanism may be more rants 39 and 40, on the supportingframework 4|, fully understood by reference to co-pending of which thelevers are mounted by a pin 42. United States application Serial No.466,463. Ad- Through the intermediary of links 43 and 44 the jacent itsright-hand end, shaft 62 is surrounded levers 36 and 31 are connected tolevers 45 and by a short sleeve 66, held against lateral displace- 46pivoted on the housing 33 at 41. ment by a collar 61 keyed to the shaft62, and Journaled in bearings 48 in housing 33 and exhaving affixedthereto the lever 46. Likewise, aftending to opposite sides of thetractor body is a fixed to sleeve 66 is an arm 68 operativelycontransverse rock-shaft 49 surrounded by a loose nected by a link 69 toa control mechanism gensleeve 50 of such length as to permit the ends oferally indicated at 10 for cylinder device 35, the shaft 49 to projectsomewhat therebeyond. At operation of which is substantially similar tothat opposite ends of shaft 49 and outside the housprovided for controlmechanism 65. ing 33, levers 5| are mounted and affixed to shaft 30 Whenit is desired to effect delayed lifting of 49 as by welding. Theselevers are adapted for rear working tools with respect to front workingrocking movement with shaft 49 in directions lontools, as at the end ofa row, the manual lever 36 gitudinally ofthe tractor. Adjacent oppositeends is first moved along the portion 39 of the quadof sleeve 50 andoutside the housing 33, levers 52 rant to the position corresponding tothe vertiare mounted and affixed to the sleeve as by weldc5 cal positionthe front working tools are to occupy ing. These levers are likewiseadapted for ro`ckwith respect to the ground. Cylinder is then ingmovement with sleeve 50 in directions longiactuated and piston 56extended to rock lever 52 tudinally of the tractor. In the arrangementforwardly to raise the front working tools from shown in Figures 1 and2. the rear Working tools ground-working position. When the rear workonopposite sides of the tractor are connected by 4o ing tools have reachedthe end of the row, the connecting rods 53 to the levers 5| on the shaftmanual lever 31 is manipulated to turn shaft 62 49, while the forwardworking toolsare conand actuate cylinder 34. Piston 55 is then exnectedby connecting rods 54 to levers 52 on sleeve tended to rock lever 5|forwardly, thus raising the 50. Forward movement of lever 5| effectsuprear working tools.

ward movement of rear working tools I6, while Referring now to Figure 4,it may be noted forward movement of lever 52 effects upward that levers5| and 52 are each provided at their movement of forward working tools25. Since ends with two openings 1| for the connection Shaft 49 andSleeve 50 may be independently thereto of rods 53 and 54. Rods 53 and 54are rocked, it becomes clear that, with the arrangereadilydisconnectable from the openings 1| and, ment shown, the rear workingtools I6 may be 5o when it is desired to convert the implement to raisedor lowered as a unit independently of the the selective lift type, therod 54 on the right side forward working tools 25. I of the tractor maybe disconnected from lever independent rocking movement of shaft 49 52and connected to lever 5|, as indicated in and sleeve is effected by thecylinder devices 34 Figure 4. At the same time, rod 53 on the left and35 located within the housing 33. These cyl- 55 side of the tractor isconnected to the lever 52 inder devices are of the double-actingfluid-actuon that side. Thus, on the right side of the ated type and areprovided with pistons 55 and tractor, front and rear working tools arecon- 56, as indicated in Figures 3 and 5. Piston 56 is nected to lever5| which is mounted on shaft 49, pivotally connected to rock arm 51aixedtosleeve and, on the left side of the tractor, front and 50 asbywelding. When piston 56 is extended, le- 60 rear working tools areconnected to lever 52 ver 52 is rocked forwardly, raising the forwardlywhich is mounted on sleeve 50. Operation of mounted working tools fromthe ground. Upon manual lever 36 then controls the raising andretraction of piston 56, the working tools are relowering of implementson the left side of the turned to ground-working position. In order totractor, and manual lever 31 controls operation procure a connectionbetween cylinder device 34 g5 of the tools on the right side of thetractor as a and shaft 49, the sleeve 59 is provided with an anunit. Thelocation of both levers 36 and 31 on nular opening at 58 and the" twoportions spanned one side of the tractor adjacent the steering post by abridge structure 59, clearly shown in Figure 5 facilitates themanipulation of the working tools and having legs 60 affixed to thesleeve at oppoas separate units. Likewise, the operator can site sidesofthe opening as by welding. A rock raise or lower all of the workingtools simularm 6| is keyed or welded to the shaft 49 and protaneously,by grasping both of the levers with one vides a Yvivotal connection forthe end of piston hand and manipulating them jointly. To facili- 55.Upon extension of piston 55, shaft 49 is rocked tate adjustment of theworking tools over limited within the limits permitted by the bridge 59.Leranges, as in depth adjustment, stop members ver 5| moves forward andthe rear working tool 76 1 2 may be utilized. Stops 12 are pivoted onthe 2,368,156 3 pin'42, and each is provided with a detent 13rlgs'mountedupon opposite sides ofthe tractor adapted to engage openings'M in the quadrant, for vertical movement with respect thereto and andmay be adjusted to any desired position powerlifting devices 4mounted onthe tractor.. in thereon. c mbination, a transverse shaft extending toopmechanism has been devised for readily convert- 1U of said rigs, andpower means for independently ing a tractor-mounted implement from adelayed-A rocking said shaft and said sleeve.

selective lift. While the invention has been deasinge rOCk arm. scribedin connection with the utilization of cul- 5- In tractobmountedimplementcompris- Having now described the invention in its pre- 3o t0 and fromWorking Position, in COmbnatiOn, a

the appended Manns, A tween said arms and the rear working tools, a whatjs claimed is: 3;', Sleeve 0n the 1' Gek-Shaft, a rock arm at each endl, In a, tractor-mounted agricultura] imple.y 0f theV Sleeve, liftingCODDGCODS between Said power-lifting devices mounted upon the tractor otions on one Sido of the tractor t0 the shaft rock and deriving powertherefrom, in combination, am and on the other Side 0f the tml t0 themeans for effecting delayed lifting of rear rigs Sleeve rook ml i withrespect to front rigs by disconnectably con- 6' In a tractormountedimplement comprising necting front and rear rigs as separate units tofront and rear earth'working rigs {nm-moed Pon converting said delayedlift to selective lift by with lzeopeot thereto' wherein moans areProviqed connecting front and rear rigs on opposite sides for ralsmg andlowering cortan? of Said rigs Wlth one side of the tractor may be madewith respect 50 dependent lifting of from; rigs with respect to stransversely extending, concentric, rockable memfor vertical movementwith respect thereto and bers mounted on the tractor an afm connectedpower-lifting devices mounted upon the tractor to each end of each SaidI nembel'f-dlsconnectab1e of the tractor to a common source of power, ooconneota'ble means oommectng rear rigs 01183011 arrangement may beconverted into a selective 70* ber, whereby independent movement maybemade 3. In a tractor-mounted agricultural imple- 75 rocking saidmembfers ment comprising front and rear earth-working 7. I'n a'tractor-mounted agricultural implement comprising front and rearearth-working rigs mounted upon opposite sides of the tractor forvertical movement with respect thereto, wherein meansare provided forraising and lowering one set of rigs with respect, to another, incombination, interchangeable connecting means for optionally effectingdelayed lifting of front rigs with respect to rear rigs as units, orselective lifting of front and rear rigs on one side of the tractor withrespect to front and rear rigs on the other side of the tractor, asunits, said means comprising a transverse shaft on arm connected to eachend of said shaft, a sleeve on said shaft, arm connected to each end ofsaid sleeve, iront rigs on each side of the tractor to one arms,disconnectable means connecting rear rigs on each side of the tractor tothe otherof said arms, whereby independent movement of front rigs withrespect to rear rigs may be effected, means for connecting theconnecting means for front and rear rigs on one side of the vtractoronly to the arm on said shaft, means for connecting the connecting meansfor front and rear rigs on the other side of said tractor only to thearm on said sleeve, whereby independent movement may be made of irontand rear rigs on one side of the tractor with respect to front and rearrigs on the other side of said tractor, and power means forindependently rocking said shaft and said sleeve.

8. In a tractor-mounted agricultural implement comprising front and rearearth-Working rigs mounted upon opposite sides of the tractor forvertical movement with respect thereto and laterally spacedpower-lifting devices mounted on opposite sides of the longitudinalcenter line of the tractor, in combination, la transverse shaftextending lbeyond the lateral limits of said power devices, arms affixedVto opposite ends of said shaft, a sleeve loose upon said shaft andsubstantially coextensive therewith, arms afiixed to opposite ends ofsaid sleeve, means connecting said earth-working rigs to said arms,means connecting one said power lift to said sleeve intermediate itsends for rocking movement thereof, means connecting said other powershaft intermediate its ends for rocking' movement thereof, and meanspermitting independent rocking movement, of said shaft with respect tosaid sleeve, said last-mentioned means including the tractor, anv

lift to saidl an arcuate opening in said sleeve for the connection ofsaid vpower lift to said shaft.

9. In a tractor-mounted agricultural implement comprising front and rearearth-working rigs mounted upon opposite sides of the tractor forvertical movement with respect thereto and laterally spacedpower-lifting devices mounted on the tractor, in combination, atransverse shaft extending beyond the lateral limits of said powerdevices, arms affixed to opposite ends of said shaft, said shaft andsubstantially coextensive therewith, arms aillxed to opposite ends ofsaid sleeve, means connecting said earthworking rigs to said arms, meansconnecting one said power lift to said sleeve intermediate its ends forrocking movement thereof, means connecting said other power lift to saidshaft intermediate its ends for rocking movement thereof, and meanspermitting independent rocking movement of said shaft with respect tosaid sleeve, said last-mentioned means including an annular opening insaid sleeve for the connection of said power lift to said shaft, and abridge rigidly affixed to said sleeve and spanning said Opening.

10. In apower transmission device including a rock-shaft and anindependently rockable sleeve on said shaft, means connecting saidsleeve to a source of power for rocking movement thereof, and meansconnecting said shaft to a source of power at a point intermediate theends of said sleeve, said last-mentioned means including a rock armafiixed to said shaft and connected to said source of power, and anarcuate opening in said sleeve of sufficient extent to permit relativemovement of said rock arm with respect to said sleeve.

1l. In a power transmission device including a rock-shaft and anindependently rockable sleeve on said shaft, means connecting saidsleeve to a. source of power for rocking movement thereof, and meansconnecting said shaft to a. source of power at a point intermediate theends of said sleeve, said last-mentioned means including a rock armaiiixed to said shaft and connected to said source of power, an annularopening in said sleeve, and a bridge spanning said opening and rigidlyaflixed to said sleeve on each side of said opening.

JOHN R. ORELIND. ARTHUR G. EVANS.

